{"id":"S2010100243","label":"Mechanical engineering--Early works to 1800","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2010100243","normalized_label":"mechanical engineering--early works to 1800","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2010100243","provider":"lcsh","revision":"64658c52181ec6fd","taxonomy_revision":"f050b5d4780b1289","title":"Mechanical engineering--Early works to 1800","url":"/topics/S2010100243","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"595825636271088162","address_version":"morton4x16-v1","coordinates":[0,479,16072,19456],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}